From d4ead3870db43a8acb274a1dc7df1ffb93a52d77 Mon Sep 17 00:00:00 2001
From: Lawrence <1934378145@qq.com>
Date: Mon, 11 Jan 2021 20:39:27 +0800
Subject: [PATCH] =?UTF-8?q?=E4=BC=98=E5=8C=96=E5=BD=95=E5=83=8F=E6=B8=85?=
 =?UTF-8?q?=E5=8D=95=E8=8E=B7=E5=8F=96=E7=AE=97=E6=B3=95?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 .../request/impl/MessageRequestProcessor.java | 37 +++++++------------
 1 file changed, 14 insertions(+), 23 deletions(-)

diff --git a/src/main/java/com/genersoft/iot/vmp/gb28181/transmit/request/impl/MessageRequestProcessor.java b/src/main/java/com/genersoft/iot/vmp/gb28181/transmit/request/impl/MessageRequestProcessor.java
index aa2f2823..c5ae4f5d 100644
--- a/src/main/java/com/genersoft/iot/vmp/gb28181/transmit/request/impl/MessageRequestProcessor.java
+++ b/src/main/java/com/genersoft/iot/vmp/gb28181/transmit/request/impl/MessageRequestProcessor.java
@@ -342,6 +342,7 @@ public class MessageRequestProcessor extends SIPRequestAbstractProcessor {
 		try {
 			// 回复200 OK
 			responseAck(evt);
+			String seqNo = String.valueOf(System.currentTimeMillis());
 			RecordInfo recordInfo = new RecordInfo();
 			Element rootElement = getRootElement(evt);
 			Element deviceIdElement = rootElement.element("DeviceID");
@@ -396,32 +397,22 @@ public class MessageRequestProcessor extends SIPRequestAbstractProcessor {
 				if (recordInfo.getSumNum() > 0 && recordList.size() > 0 && recordList.size() < recordInfo.getSumNum()) {
 					// 为防止连续请求该设备的录像数据，返回数据错乱，特增加sn进行区分
 					String cacheKey = CACHE_RECORDINFO_KEY + deviceId + sn;
-					// TODO 暂时直接操作redis存储，后续封装专用缓存接口，改为本地内存缓存
-					if (redis.hasKey(cacheKey)) {
-						List<RecordItem> previousList = (List<RecordItem>) redis.get(cacheKey);
-						if (previousList != null && previousList.size() > 0) {
-							recordList.addAll(previousList);
-						}
-						// 本分支表示录像列表被拆包，且加上之前的数据还是不够,保存缓存返回，等待下个包再处理
-						if (recordList.size() < recordInfo.getSumNum()) {
-							logger.info("已获取" + recordList.size() + "项录像数据，共" + recordInfo.getSumNum() + "项");
-							redis.set(cacheKey, recordList, 90);
-							return;
-						} else {
-							// 本分支表示录像被拆包，但加上之前的数据够足够，返回响应
-							// 因设备心跳有监听redis过期机制，为提高性能，此处手动删除
-							logger.info("录像数据已全部获取");
-							redis.del(cacheKey);
-						}
-					} else {
-						// 本分支有两种可能：1、录像列表被拆包，且是第一个包,直接保存缓存返回，等待下个包再处理
-						// 2、之前有包，但超时清空了，那么这次sn批次的响应数据已经不完整，等待过期时间后redis自动清空数据
-						logger.info("已获取" + recordList.size() + "项录像数据，共" + recordInfo.getSumNum() + "项");
-						logger.info("等待后续的包...");
 
-						redis.set(cacheKey, recordList, 90);
+					redis.set(cacheKey + "_" + seqNo, recordList, 90);
+					List<Object> cacheKeys = redis.scan(cacheKey + "_*");
+					List<RecordItem> totalRecordList = new ArrayList<RecordItem>();
+					for (int i = 0; i < cacheKeys.size(); i++) {
+						totalRecordList.addAll((List<RecordItem>) redis.get(cacheKeys.get(i).toString()));
+					}
+					if (totalRecordList.size() < recordInfo.getSumNum()) {
+						logger.info("已获取" + totalRecordList.size() + "项录像数据，共" + recordInfo.getSumNum() + "项");
 						return;
 					}
+					logger.info("录像数据已全部获取，共" + recordInfo.getSumNum() + "项");
+					recordInfo.setRecordList(totalRecordList);
+					for (int i = 0; i < cacheKeys.size(); i++) {
+						redis.del(cacheKeys.get(i).toString());
+					}
 				}
 				// 自然顺序排序, 元素进行升序排列
 				recordInfo.getRecordList().sort(Comparator.naturalOrder());